Diagrams; Explanation Of Ic Terminals - Sony CFD-ZW755 Service Manual

5-1. EXPLANATION OF IC TERMINALS

IC801 CXP83516-606Q (SYSTEM CONTROL)
Pin No. Pin name
1 C-SCOR/R-CNT
2 RMC
3 CD
4 C-MUT
5 C-SEN1
6 C-SEN2
7 C-SQCK
8 C-SQSO
9 C-RST
10 C-CLK
11 C-LAT
12 C-DATA
13 PCON
14 TAPE A
15 TAPE B
16 DUB.
17 JOG A
18 JOG B
19 VOL A
20 VOL B
21 PORT OUT
22 TC1
23 TC2
24 – 26 KEY-1 – 3
27 VL
28 VH
29 INT/SFT-CLK
–––––––––
30 RST
31 EXTL
32 XTAL
33 VSS
34 VL
35 – 37 VLC-3 – 1
38 – 41 COM0 – 3
42 – 60 SEG0 – 18
61 NC
62 RADIO
63 MOTOR
64 M.B CTL
65 ISS
66 B-MUTE
67 R-LATCH
68 R-CLK
69 V-DATA/R-DATA
70 V-LATCH
71 V-CLOCK
72 VDD
73 TX
74 TXE
75 NC
76 NC
77 A-MUT
78 REC
79 C-DOR
80 REGCK
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SECTION 5

DIAGRAMS

I/O
I CD SCOR input.
I Sircs receiver input.
O CD function output.
O CD block mute output.
I CD SENSE-1 input.
I CD SENSE-2 input.
O CD Sub-Q read clock output.
I CD Sub-Q data input.
O CD reset output.
O CD serial clock output.
O CD serial latch output.
O CD serial data output.
O System power control output.
O DECK A select signal output.
O DECK B select signal output.
O Dubbing ON signal output.
I Preset JOG switch input.
I Preset JOG switch input.
I Volume JOG switch input.
I Volume JOG switch input.
O Pull up voltage output.
I Deck A tape play switch input.
I Deck B tape play switch input.
I Key input.
I Battery Low detect input.
I Battery High detect input.
O Shift clock output.
I System reset input.
I Oscillation input (4.19 MHz).
O Oscillation output (4.19 MHz).
— GND.
O LCD drive port ON/OFF output.
O LCD drive voltage terminal.
O LCD drive common output.
O LCD drive segment output.
— Not used.
O Radio B+ ON output.
O Motor B+ ON output.
O Mega bass ON/OFF output.
O ISS swithing output.
O Tuner mute signal output
O Tuner latch output.
O Tuner clock output.
O Tuner data output/volume data output.
O Volume latch output.
O Volume clock output.
— Power supply pin (+5 V).
O Oscillation output (32.768 kHz).
I Oscillation input (32.768 kHz).
— Not used (OPEN).
— Not used (OPEN).
O Audio mute output.
I Tape record signal input.
I CD door open/close switch input.
I Regulator check.
Description
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